The Rayleigh-Ritz method of calculating the natural vibration frequency of a structure in the second or further order is very complicated. This paper describes a simplified method of calculating the first and second order natural vibrational frequencies of wind turbine towers.
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References
1.
1. “Structure Dynamics”, written by teaching group of structure dynamics of Qinghua University, China. March 1981, published by High Education Press of China.
2.
Hangye Ye, “A simplified Calculation for the Nature Frequency of Vibration Cycle for Horizontal Axial Wind Turbine”, No.4 of 1995 “Wind Power”. China.
